IBM MainFrame Interview Questions, Answers for Freshers and Experienced asked in various Company Job Interviews

COBOL (1072)
JCL (1031)
CICS (755)
DB2 (1122)

IMS (143)
IDMS (107)
Natural (81)
ADABAS (26)

REXX (60)
Assembler (68)
CLIST (6)
QMF (32)

MVS (25)
OS390 (10)
OS 2 (7)
VSAM (319)

IBM MainFrame Interview Questions

Questions Answers Views Company eMail

what is address space in mvs?

IBM,

1 2918

how to send a sms to a mobile through mainframe mvs?

IBM,

1132

How many register we are using in mvs?

IBM,

1015

what is pdes?

IBM,

1066

what is the facility that allows mainframes to be partitioned into lapars? A.z/os b.pr/sm c.vitual storaged.coupling facility

IBM,

1152

what is swap-in and swap-out?

IBM,

1054

what is the size of the address space in kbs for 16 bit address space?

IBM,

1044

how to define a directory and what is the structure and definition for the same?

IBM,

1032

what is the panel name of ispf primary option menu?

IBM,

1110

what is the syntax of ams modal commands?

IBM,

1217

what how do you initialize a vsam file before any operation? A vsam with alternate index?

IBM,

974

what are the different types of vsam files available? Explain them

IBM,

1 1758

if you wish to use the rewrite command how must the vsam file be opened?

IBM,

1122

what is the purpose of the verify function of idcams?

IBM,

1016

how do you create an alternate index ?

IBM,

1030

Un-Answered Questions { IBM MainFrame }

Explain associator in adabas?

826

Why do we code s9 (4) comp. Inspite of knowing comp-3 will occupy less space?

1123

Name the statement which can be used to send data to another mvs jes3 node?

1132

What is the difference between nvl and coalesce?

1025

Explain the purpose of dd dummy statement?

1172

What is the meaning of copy idms subschema-binds in idms?

839

Is it possible to alter a table – for example adding a column, when another user is accessing or updating some columns?

1046

kindly specify the pic clause for the following:any bll cell, data type of length option field, hhmmss type of data fields?

1067

Explain how DSECT parameter is used in BMS ?

1172

How to Clear a Query Using the RESET Command ?

1682

Where can program checkpoints be stored for use in a restart?

1395

What is iseries database?

1011

What is the facility that allows mainframes to be partitioned into lapars?

1054

What is the function of the dd mgmtclas keyword in sms datasets?

1192

How do define dynamic array in cobol. how do you define single dimensional array and multidimensional array in your cobol?

1199

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